BIRMINGHAM, Alabama -- Sorry, Rick Ross fans. The rap star -- and head honcho of Maybach Music Group -- won't be performing on Aug. 31 at Birmingham's BJCC Arena.

Ross, 38, was to be the headliner at Jamz Fest, on a bill with T-Pain and Rich Homie Quan. The concert has been canceled, according to the listing on Ticketmaster. No reason was given for the change in plans.

Per Ticketmaster policy, refunds are automatic for those who bought tickets online or by phone, using a credit card. Other tickets must be returned to the place of purchase for a refund.